I started many, many years ago making my panties. At the time there was a local store I could go to for tricot and the elastics. I still make my half slips. Mary Jo's in NC carries tricot and elastic, but I like buying everything in one package from Needle Nook Fabrics. Anne states in her book that she want each person to support their local stores before buying from her. The problem in very few store carry the supplies needed for bras.